package innerclasses;

interface Service{
	void method1();
	void method2();
}

interface ServiceFactory{
	Service getService();
}

class Implementation1 implements Service{
	private Implementation1(){
		
	}

	@Override
	public void method1() {
		System.out.println("Implementation1.method1");
	}

	@Override
	public void method2() {
		System.out.println("Implementation1.method2");
	}
	public static ServiceFactory factory = 
			new ServiceFactory() {

				@Override
				public Service getService() {
					return new Implementation1();
				}
	};
}

class Implementation2 implements Service{
	private Implementation2(){
		
	}

	@Override
	public void method1() {
		System.out.println("Implementation2.method1");
	}

	@Override
	public void method2() {
		System.out.println("Implementation2.method2");
	}
	public static ServiceFactory factory = 
			new ServiceFactory() {

				@Override
				public Service getService() {
					return new Implementation2();
				}
	};
}

public class Factories {

	public static void serviceConsumer(ServiceFactory fact) {
		Service s = fact.getService();
		s.method1();
		s.method2();
	}
	public static void main(String[] args) {
		serviceConsumer(Implementation1.factory);
		serviceConsumer(Implementation2.factory);
	}
}
